Eksponen kelas x sma

Eksponen

(x - 7)^(x² - 2) = (x - 7)^x
x² - 2 = x
x² - x - 2 = 0
(x + 1)(x - 2) = 0
x = -1 atau x = 2

x - 7 = 1
x = 8

x - 7 = -1
x = 6

x - 7 = 0
x = 7

HP = {-1 , 2, 6, 7, 8} ✔